I'm having a hard time remembering trig, and I have spent some time trying to solve this.
How do I find the coordinate of a point on a circle for certain angle if we know radius of circle and a center of circle coordinate?
Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It only takes a minute to sign up.
Sign up to join this communityI'm having a hard time remembering trig, and I have spent some time trying to solve this.
How do I find the coordinate of a point on a circle for certain angle if we know radius of circle and a center of circle coordinate?
For a given angle $\theta$ and a circle of radius $r$ and center $(h, k)$, recall that we can determine the Cartesian coordinates $(x, y)$ of the point on the circle determined by $\theta$ and $r$, where $$x = h + r \cos \theta,\;\;y = k + r\sin \theta$$
if the centre of the answer circle is $(h,k)$,angle $\theta$,and radius $r$,then position of point is $$(h + r\cos\theta, k + r\sin\theta)$$